Preparation method of foam material for bra

Abstract

The invention relates to the field of underwear production, particularly to a preparation method of a foam material for a bra. The preparation method comprises the following steps: respectively conveying an organic silica gel A containing a foaming component and an organic silica gel B containing a foaming component to the channel A and the channel B of a glue injection machine; keeping the organic silica gel A and the organic silica gel B at a constant temperature to a pretreatment working temperature to prepare before gel injection; uniformly stirring and mixing the organic silica gel A andthe organic silica gel B; setting glue injection parameters; starting the glue injection machine, injecting the uniformly mixed silica gel into the female die of a mold cup, buckling a male die, locking the female die and the male die, turning over the mold cup, and foaming; and after the foaming is finished, opening the mold cup, and taking out the foam material. By adopting the method disclosedby the invention, the organic silicon foam mold cup material with characteristics of uniform foaming, low density, high aperture ratio, soft hand feeling and stable quality can be obtained through one-time foaming molding.

Description

technical field [0001] The invention relates to the field of underwear production, in particular to a method for preparing a foam material used in bras. Background technique [0002] With people's continuous pursuit of healthy and quality life, the debate on healthy underwear has become more and more intense. Especially in recent years, the increase of breast diseases and breast cancer has made people put forward requirements on the comfort, health, safety and environmental protection of bras, and also put forward higher standards for the materials filled in bras. [0003] The commonly used bra filling materials are as follows: [0004] 1. PU foam material is made of polyurethane raw material foam and then made by high temperature molding. It has low density, light weight and good flexibility, so it is widely used. However, PU foam material has poor air permeability, general permanent deformation, poor sweat resistance, easy hydrolysis, poor weather resistance, and easy to...

AI Technical Summary

Problems solved by technology

However, PU foam material has poor air permeability and general permanent deformation; poor sweat resistance; easy to hydrolyze; poor weather resistance and easy to turn yellow

The production process is not environmentally friendly. During the use of sponge cups, toxic, irritating or sensitizing chemicals may be released, which is potentially dangerous to women's health;

[0005] 2. Silicone gel material, which has the advantages of soft texture, good elasticity, close to the skin texture, and real touch feeling; but the air permeability is not good, the density is high, and the quality is heavy;

However, the silicon foam foaming process requires harsh conditions, and it is impossible to obtain a mold cup material with uniform foaming, low density, high porosity, soft hand feeling, and stable quality.

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